SPRUIG1A September   2017  – October 2025

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4.   4
  5. 1 Introduction
    1. 1.1 EVM System View
    2. 1.2 Schematics/Design/Errata Files
    3. 1.3 Other Useful Links
  6. 2 Important Usage Notes
    1. 2.1 Isolated Power Supply
    2. 2.2 Powering On EVM
    3. 2.3 Powering Off EVM
    4. 2.4 Removing Processor and LCD Module Boards
    5. 2.5 Removing Camera Module Board
    6. 2.6 Caution: Hot Surface
  7. 3 System Description
    1. 3.1 System Board Diagram
    2. 3.2 Processor
    3. 3.3 Clocks
    4. 3.4 Reset Signals
  8. 4 Power System
    1. 4.1 Power Source
    2. 4.2 Power Nets
    3. 4.3 Power Management IC Power Supplies
    4. 4.4 APM Sense Resistors
  9. 5 Configuration/Setup
    1. 5.1 Boot and Emulation Setup
      1. 5.1.1 Emulation and Hardware Setup
    2. 5.2 I2C Address Assignments
    3. 5.3 I2C ID Memory
  10. 6 Processor Module Functional Block Descriptions
    1. 6.1 Memory
      1. 6.1.1 4KB EEPROM (Board Identity Memory)
      2. 6.1.2 2GB DDR3L
      3. 6.1.3 eMMC Flash Memory
      4. 6.1.4 MicroSD (MMC1) Connector
    2. 6.2 Temperature Sensor
    3. 6.3 Real Time Clock
    4. 6.4 10/100/1000 Ethernet
    5. 6.5 USB
    6. 6.6 Audio
    7. 6.7 HDMI
    8. 6.8 eSATA
    9. 6.9 Serial Debug Header
  11. 7 AM572x EVM LCD Module Functional Block Descriptions
    1. 7.1 LCD Screen
    2. 7.2 Capacitive Touch Screen
    3. 7.3 mSATA
    4. 7.4 miniPCIe
    5. 7.5 COM8 Interface – Mobile Connectivity Expansion Connector
  12. 8 AM572x EVM Camera Module Functional Block Descriptions
  13. 9 Board Connectors
    1. 9.1  Gigabit Ethernet - P5 (Processor Module)
    2. 9.2  eSATA / USB - P6 (Processor Module)
    3. 9.3  USB
      1. 9.3.1 AM572x USB2 (USB 2.0 Client) - P7 (Processor Module)
      2. 9.3.2 AM572x USB1 (USB 3.0 Host) - P13, P15 (Processor Module)
    4. 9.4  Serial Debug Header - P10 (Processor Module)
    5. 9.5  HDMI - P11 (Processor Module)
    6. 9.6  MicroSD - P12 (Processor Module)
    7. 9.7  Expansion Connectors
      1. 9.7.1 Processor Module P16/LCD Module P1
      2. 9.7.2 Processor Module P17 / LCD Module P3
      3. 9.7.3 Processor Module P18 / LCD Module P4
      4. 9.7.4 Processor Module P19 / LCD Module P2
    8. 9.8  JTAG Connector
    9. 9.9  LCD Connector - P5 (LCD Module)
    10. 9.10 Touchscreen Connector - P15 (LCD Module)
    11. 9.11 PCI-Express Mini Card Slot - P7 (LCD Module)
    12. 9.12 mSATA Connector - P8 (LCD Module)
    13. 9.13 Camera Connector - P9 (LCD Module), P9 (Camera Module)
    14. 9.14 Communications Connector - P12 (LCD Module)
  14. 10References
  15. 11Revision History

9.9 LCD Connector - P5 (LCD Module)

The LCD Module's backlight supply comes from a TPS61080 LED Driver / Boost-Converter. It outputs 9.9 V max and is controlled by PWM (see: EHRPWM2A on Pin 5 of P17 Processor Module).

Table 9-13 LCD Module Capacitive Touch Screen Pin Details
Pin NumberSignalDescription
1VLED+LED Backlight Supply+
2VLED+LED Backlight Supply+
3VLED-LED Backlight Supply-
4VLED-LED Backlight Supply-
5GNDGround
6VCOMLCD COM Voltage
7VDDLCD Main Voltage
8MODENot Connected
9DEData Enable
10VSVertical Sync
11HSHorizontal Sync
12-19B7-B0Pixel's Blue Data
20-27G7-G0Pixel's Green Data
28-35R7-R0Pixel's Red Data
36GNDGround
37PCLKPixel Clock
38GNDGround
39L/RNot Connected
40U/DNot Connected
41VGHLCD Bias Voltage
42VGLLCD Bias Voltage
43AVDDLCD Main Analog Voltage
44LCDRSTnLCD Reset Signal (always-high)
45NCNot Connected
46VCOMLCD COM Voltage
47DITHBNot Connected
48GNDGround
49NCNot Connected
50NCNot Connected